PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
From a fixed lamp post taken as the origin, a student first walks 200m due west and then 150m due north.
(i) Find the magnitude of the student’s resultant displacement from the lamp post.
(ii) Determine the direction of this displacement, expressing the answer as an angle north of west.
(iii) The student now wishes to reach a point R that is situated 100m directly east of the lamp post. Calculate the additional distance and direction (bearing) the student must walk from the present position to reach point R.